on 1/9/03 5:03 PM, Joel Troyer at jtfoto at netscape.net wrote: I believe you can put a 512 mb dimm in the 466 Rev. C (with FireWire) Clamshell. I think you have to do a firmware update. I am not sure you can put the same in a Blueberry (Rev. A) Clamshell. Trucker Bill > I have a Blueberry clamshell ibook. I have a 256mb dimm in the top > slot, and according to mac, that's all I can install there. If I were > to say drop in a 512mb dimm, would it recognize the additional memory? -- The Important things are always Simple. The Simple things are always Hard.